package org.common4j2ee.stock.entity.user;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OrderBy;
import javax.persistence.Table;
import javax.persistence.Transient;

import org.apache.commons.beanutils.PropertyUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.common4j2ee.stock.entity.IdEntity;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
import org.hibernate.annotations.Fetch;
import org.hibernate.annotations.FetchMode;

import com.google.common.collect.Lists;

/**
 * @author 文强
 * 使用JPA annotation定义ORM关系.
 * 使用Hibernate annotation定义JPA 1.0未覆盖的部分.
 * 
 *
 */
@Entity
//表名与类名不相同时重新定义表名.
@Table(name = "T_USERS")
//默认的缓存策略.
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Users extends IdEntity {

	private String loginName;
	private String password;//为简化演示使用明文保存的密码
	
	private Date effectiveTime;
	
	private Date expiredTime;
	
	private String remark;
	
	private List<Role> roleList = Lists.newArrayList();//有序的关联对象集合
	

	public Users(){
		
	}
	
	//字段非空且唯一, 用于提醒Entity使用者及生成DDL.
	@Column(nullable = false, unique = true,name="loginName")
	public String getLoginName() {
		return loginName;
	}

	public void setLoginName(String loginName) {
		this.loginName = loginName;
	}

	@Column(name="password")
	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	
	@Column(name="remark")
	public String getRemark() {
		return remark;
	}

	public void setRemark(String remark) {
		this.remark = remark;
	}
	@Column(name="EFFECTIVE_TIME")
	public Date getEffectiveTime() {
		return effectiveTime;
	}

	public void setEffectiveTime(Date effectiveTime) {
		this.effectiveTime = effectiveTime;
	}
	@Column(name="EXPIRED_TIME")
	public Date getExpiredTime() {
		return expiredTime;
	}

	public void setExpiredTime(Date expiredTime) {
		this.expiredTime = expiredTime;
	}
	

	//多对多定义
	@ManyToMany
	//中间表定义,表名采用默认命名规则
	@JoinTable(name = "T_USER_ROLE", joinColumns = { @JoinColumn(name = "USER_ID") }, inverseJoinColumns = { @JoinColumn(name = "ROLE_ID") })
	//Fecth策略定义
	@Fetch(FetchMode.SUBSELECT)
	//集合按id排序.
	@OrderBy("id")
	//集合中对象id的缓存.
	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
	public List<Role> getRoleList() {
		return roleList;
	}

	public void setRoleList(List<Role> roleList) {
		this.roleList = roleList;
	}

	/**
	 * 用户拥有的角色名称字符串, 多个角色名称用','分隔.
	 */
	//非持久化属性.
	@Transient
	public String getRoleNames() {
		List<String> list = Lists.newArrayList();
		try {
			for (Object obj : roleList) {
				list.add((String)PropertyUtils.getProperty(obj, "name"));
			}
		} catch (Exception e) {
		}
		return StringUtils.join(list, ", ");
	}

	/**
	 * 用户拥有的角色id字符串, 多个角色id用','分隔.
	 */
	//非持久化属性.
	@Transient
	@SuppressWarnings({ "unchecked", "rawtypes" })
	public List<Long> getRoleIds() {
		List list = new ArrayList();

		try {
			for (Object obj : roleList) {
				list.add(PropertyUtils.getProperty(obj, "id"));
			}
		} catch (Exception e) {
		}

		return list;
	}

	@Override
	public String toString() {
		return ToStringBuilder.reflectionToString(this);
	}

	
}